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started yesterday, the car is a 2002 325i we are working on putting a m3 rear end in it to get the lsd and the lower gear ratio. So far we have removed the the stock rear subframe, m3 subframe should go in today

finished putting it in today. the drive shaft will need to be lengthened, and the aluminium support brace that is on the front 2 diff bolts need to be changed or modified to work. but its going pretty smoothy

Finally got everything put back together today. Drive shaft finally finished. The length it needs to be lengthened is 5 inches if you aren't using the 6 speed tranny. Everything works great just need to get an alignment tomorrow. Just that my cluster is a Christmas light lol the traction control is always off the abs light is on the hand brake light is always on. Any one know why or how this could be fixed ? Would it be because the m3 and the 325 wiring is different ? But here are some pictures of the finished project

Had to reverse mount the bolts on the flange that connects te drive shaft to the guibo because the new drive shaft was to thick and the bolts wouldn't fit through the right side. No problems drive shaft is still balanced

The drive shaft was lengthened at drive products but the proper flange was put on at pats drive line since drive products wouldn't do it. And no haven't figured out the lights yet , car drives fine with them on will look into it soon though